Thickness specifications of insulating rubber mats

Introduction to Insulating Rubber Mats:

Insulating rubber mats, also known as insulating mats, insulating pads, insulating gaskets, or insulating blankets, are widely used in substations, power plants, distribution rooms, laboratories, and live outdoor operations.

Made from rubber insulating materials, the upper and lower surfaces of the insulating mat should be free from harmful irregularities. Harmful irregularities refer to defects that compromise uniformity or damage the smooth surface profile, such as small holes, cracks, local bulges, cuts, embedded conductive foreign objects, folds, voids,凹凸波纹 (convex and concave waves), and casting marks. Harmless irregularities refer to surface irregularities formed during the production process.

Specifications of Insulating Rubber Mats

(1) By voltage等级: 5kv, 10kv, 20kv, 25kv, 35kv

(2) By color: black rubber mat, red rubber mat, green rubber mat

(3) By thickness: 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm

Standard Configurations for Insulating Rubber Mats:

(1) 5KV insulating rubber mat thickness: 3mm specific gravity: 5.8KG/m2 color: red, green, black

(2) 10KV insulating rubber mat thickness: 5mm specific gravity: 9.2KG/m2 color: red, green, black

(3) 15KV insulating rubber mat thickness: 5mm specific gravity: 9.2KG/m2 color: red, green, black

(4) 20KV insulating rubber mat thickness: 6mm specific gravity: 11KG/m2 color: red, green, black

(5) 25KV insulating rubber mat thickness: 8mm specific gravity: 14.8KG/m2 color: red, green, black

(6) 30KV-35KV insulating rubber mat thickness: 10mm 12mm specific gravity: 18.4KG/m2 22 KG/m2 color: red, green, black

Features of Insulating Rubber Mats

Excellent physical and mechanical properties, superior insulation performance, capable of operating in dry air environments from -35~+100℃ with high dielectric requirements.

Manufacturing Process and Forming of Insulating Rubber Mats:

The upper and lower surfaces of the insulating rubber mat should be free from harmful irregularities. Harmful irregularities refer to defects that compromise uniformity or damage the smooth surface profile, such as small holes, cracks, local bulges, cuts, embedded conductive foreign objects, folds, voids,凹凸波纹 (convex and concave waves), and casting marks. Harmless irregularities refer to surface irregularities formed during the production process.

Thickness of Insulating Rubber Mats:

Randomly select more than 5 different points across the entire insulating rubber mat for thickness measurement and inspection. A micrometer or an instrument of equivalent accuracy can be used for measurement. The micrometer should have an accuracy within 0.02mm, with a measuring anvil diameter of 6mm, and a flat pressure foot diameter of (3.17±0.25)mm. The pressure foot should be able to apply a force of (0.83±0.03)N. The insulating mat should be laid flat to ensure smooth measurement with the micrometer.

National Standards for Insulating Rubber Mats:

For 10KV配电室 (distribution room) voltage, choose 8mm thickness: withstands 10000V power frequency withstand voltage test for 1 minute without breakdown; breaks down at 18000V power frequency withstand voltage test in 20 seconds. For 35KV配电室 (distribution room) voltage, choose 10-12mm thickness: withstands 15000V power frequency withstand voltage test for 1 minute without breakdown; breaks down at 26000V power frequency withstand voltage test in 20 seconds. For low voltage配电室 (distribution room), choose 5mm thickness for below 500V: withstands 3500V power frequency withstand voltage test for 1 minute without breakdown; withstands 10000V power frequency withstand voltage test for 20 seconds without breakdown!